#include <iostream>
#include <string>
#include <functional>


void print(const char* str,int num)
{
    std::cout << str << num << std::endl;
} 


int main()
{
    print("nihao",10);
    auto func = std::bind(print,"nihao",std::placeholders::_1);
    func(23);

    return 0;
}
